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Measurement Of Low Vapor Pressures : A Kinetic Approach, Samuel Bernard Bliden

Dissertations and Theses

A kinetic model was applied to vapor pressure data obtained by a variable flow method. The vapor pressures of benzoic acid, naphthalene, benzophenone, and phenylhydrazine were measured at temperatures of 293K to 307K. The data are summarized in the data table on the following page. These data were obtained by passing air over a sample of the substance in a tube. The air stream was combusted, and a flame ionization detector was used to measure the mass of CO₂ so obtained. Several different flow rates were used at each temperature with each substance.